A stage play by the astonishingly prolific Edgar Wallace was the source for the British melodrama Case of the Frightened Lady. The story focuses on the aristocratic Lebanon family, with Dowager Lady Lebanon (Helen Hayes) harboring a Deep Dark Secret. It seems that every generation or so, the Lebanon clan produces a homicidal maniac. The unfortunate candidate this time around seems to be Lord Willis Lebanon (Marius Goring), a fact that the Dowager Lady hopes to hide from the world. Alas, blood will tell and murder will out.